[webkit-changes] [WebKit/WebKit] 634d22: [JSC] Microtask should not care about exceptions

[Yusuke Suzuki]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 634d22fbdc856a59f02b6527d68a415bf1d7841a
      https://github.com/WebKit/WebKit/commit/634d22fbdc856a59f02b6527d68a415bf1d7841a
  Author: Yusuke Suzuki <ysuzuki at apple.com>
  Date:   2022-09-16 (Fri, 16 Sep 2022)

  Changed paths:
    M Source/JavaScriptCore/runtime/CatchScope.h
    M Source/JavaScriptCore/runtime/JSMicrotask.cpp
    M Source/WebCore/bindings/js/JSDOMMicrotask.cpp
    M Source/WebCore/bindings/js/ScheduledAction.cpp

  Log Message:
  -----------
  [JSC] Microtask should not care about exceptions
https://bugs.webkit.org/show_bug.cgi?id=245199
rdar://99237677

Reviewed by Mark Lam.

Microtask execution should be done without exception, and any exceptions thrown can be cleared when running microtasks.
We clear exceptions extensively for all cases, plus, we early return if termination exception is already thrown.

* Source/JavaScriptCore/runtime/JSMicrotask.cpp:
(JSC::runJSMicrotask):

Canonical link: https://commits.webkit.org/254546@main